InGaN epilayers with different indium concentrations have been grown on 100-nm-thick AlN/n-Si(111) template using plasma assisted molecular beam epitaxy.

h-zsm-5 nano-zeolites were synthesized by hydrothermal method using tetrapropylammonium hydroxide (tpaoh) as a template in the presence of various tpabr concentrations. the effect of different tpabr/tpaoh molar ratios was studied on the catalytic performance of dehydration of methanol to dimethyl ether (dme) in a fixed bed reactor under the same operating conditions (t=300°c, p=1 atm, and whsv=...

Covalent organic frameworks (COFs) show advantageous characteristics, such as an ordered pore structure and a large surface area for gas storage separation, energy storage, catalysis, molecular separation. However, COFs usually exist difficult-to-process powders, preparing continuous, robust, flexible, foldable, rollable COF membranes is still challenge. Herein, with fiber morphology the first ...

dye sensitized solar cell was fabricated from a double layer photoanode. first, tio2 nanoparticles  were synthesized by hydrothermal method. these tio2 nps were deposited on fto glasses by electrophoretic deposition  method in applied voltage of 5 v and epd time of 2.5-10 min. then tio2 hollow spheres (hss) were synthesized by sacrificed template method with carbon spheres as template and ttip ...

Porous yttria-stabilised zirconia ceramics have been gaining popularity throughout the years in various fields, such as energy, environment, medicine, etc. Although yttria-stabilised zirconia is a well-studied material, voided yttria-stabilised zirconia powder particles have not been demonstrated yet, and might play an important role in future technology developments. A sol-gel synthesis accomp...

Monodisperse Cu2WO4(OH)2 round and elliptical hollow spheres have been successfully prepared by a ligand-assisted dissolution process, without any template or surfactant.

In this contribution, an effective and soft method for removal of template from nanochannels of mesoporous silica (MCM-41) is proposed. This method is based on chemically-modified solvent extraction which enhanced by means of an auxiliary organic compound, i.e. benzene sulfonamide. Template removal was performed in soft condition, i.e. in the presence of diluted sulfuric acid and at ambient tem...

By applying in situ spectroscopies we elucidate the mechanism of template-assisted synthesis ceria-based NH 3 -SCR catalysts, allowing us to rationally improve catalytic performance.